A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROCEDE D'OBTENTION DE CERAMIQUES POREUSES, MOUSSE CERAMIQUE POREUSE ET SON UTILISATION
A method of manufacturing a porous ceramic part, comprising the following steps in succession: a) preparing a mixture M containing a ceramic powder in suspension, at least one gelling agent and at least one foaming agent, at a mixing temperature which is higher than the gelling temperature of the gelling agent; b) shearing the mixture M at a foaming temperature which is higher than the gelling temperature, to obtain a foam; c) gelling the foam by cooling the mixture M to a temperature below the gelling temperature of the gelling agent; and d) drying the gelled foam to obtain a perform. According to the invention, a stabilizing agent is added to the mixture M, which agent has an instantaneous viscosity, in Pa·s, that increases by a factor of at least ten when a shear rate of the stabilizing agent is reduced from 100 s-1 to 0.
PROCEDE D'OBTENTION DE CERAMIQUES POREUSES, MOUSSE CERAMIQUE POREUSE ET SON UTILISATION
A method of manufacturing a porous ceramic part, comprising the following steps in succession: a) preparing a mixture M containing a ceramic powder in suspension, at least one gelling agent and at least one foaming agent, at a mixing temperature which is higher than the gelling temperature of the gelling agent; b) shearing the mixture M at a foaming temperature which is higher than the gelling temperature, to obtain a foam; c) gelling the foam by cooling the mixture M to a temperature below the gelling temperature of the gelling agent; and d) drying the gelled foam to obtain a perform. According to the invention, a stabilizing agent is added to the mixture M, which agent has an instantaneous viscosity, in Pa·s, that increases by a factor of at least ten when a shear rate of the stabilizing agent is reduced from 100 s-1 to 0.
PROCEDE D'OBTENTION DE CERAMIQUES POREUSES, MOUSSE CERAMIQUE POREUSE ET SON UTILISATION
METHOD OF OBTAINING POROUS CERAMICS, POROUS CERAMIC FOAM AND ITS USE
VERFAHREN ZUR HERSTELLUNG PORÖSER KERAMIKEN, PORÖSEN KERAMIKSCHAUM UND SEINE VERWENDUNG
TARDIVAT C (author) / MERCIER EMMANUEL (author) / HIS CHRISTIAN (author) / VILLERMAUX FRANCELINE (author)
2017-03-29
Patent
Electronic Resource
French
IPC:
C04B
Kalk
,
LIME
MOUSSE CERAMIQUE CUITE POREUSE, SON PROCEDE DE FABRICATION ET SON UTILISATION
| European Patent Office | 2017